Joint for articles of glassware.



No. 729,863. PATENTED JUNE 2, 1903.

s. HIPK-INS. JOINT FOR ARTICLES 0F GLASSWARE.

APPLIUATIbN FILED FEB. 16. 1903- N0 MODEL.

WITNESSES liven-[on ma NDRms Pains co, PNOTO-LITHLL wAsmmsYom n. c

. UNKTED, STATES f Patented June 2, 1903.

FATENT @rrrcrz.

JOINT-FOR ARTICLES OF GLASSWARE.

SPECIFICATION forming part of Letters Patent N 0.'7 29 ,863, dated June 2,1903.

Application filed February 16,1903. Serial No. 1fl3, 600. (No model.)

To all whom it may concern:

Be it known that I, STEPHEN HIPKINS, a citizen of the United States, residing at Martins a firm and lasting joint.

In the manufacture of many glass articles and articles of similar material it is necessary or desirable to attach to the body of the article fittings or other parts which form part of the completed article. These fittingsor other parts may themselves be formed of glass or like material, or they may be formed of any other materialfor example, brass.

In-the accompanying drawings, which form part of this specification, I have illustrated my improved joint applied to a glass lampbody. To the lamp-body are joined fittings of metal and other parts of glass, and the union in. each instance is eifected by-my improvement.- I do not, however, limit myself to the particular application illustrated, for I con- 'sider my invention broadly applicable to articles of various materials and to signed for various uses.

In the accompanying drawings, Figure l is a View, partlyin elevation and partly in section, of a lamp in which the several parts of the lamp itself are united by my improved joint andin which the fittings are attached by my improved joint. Fig. 2 is a view, in detail and on larger scale, of a portion of the lamp-body and collar detached. Fig. 3 is a view, in detail on the same scale as Fig. 2, of a portion of the lamp-bowl, a portion of the lamp-foot, and the joint-forming means, all detached.

Parts which are repeated in the several figures bear the same reference-numerals in every case.

In Fig. 1, 1 represents the bowl of the lamp, which (it will be assumed) is of glass. 2 reparticles deresents a collar formed (it will he assumed) of brass, adapted to receive the lampburner, and this collar is united to the lamp-body by my improved joint. 3 represents a foot or base, which will also be assumed to be of glass, and this foot is united to the bowl 1 by means of the joint which constitutes my invention.

My invention consists in a substantially circular flange or projection formed upon the exterior surface of the article, the diameter of this projection being greater at some point than at another point nearer the surface of the article, and a corresponding metallic ferrule forming part of or affixed to the article or fitting to be applied and compressed into binding contact with such projection or flange. In the drawings, 11 illustrates such a flange formed upon the exterior surface of the bowl of thelampaboutthe neck 12,towliich the collar 2 is applied. This flange is preferably formed, as shown, with a portion of its outer surface that of a truncated cone tapering inward. Collar 2 is provided with a ferrule 21, adapted when the collar is applied to surround flange 11 and to be compressed into binding contact with'said flange. In Fig. 2 the parts are shown detached, and in Fig. 1 they are shown united. Another similar projection 11 is formed on the lower side of the bowl 1 and upon its exterior surface, and thefoot 3 is provided with a ferrule 31, adapted to. surround projection .11 and to be compressed upon that projection to make bindingcontact therewith and join the bowl of the lamp with its foot. As shown in Fig. 2, ferrule 21 forms part of collar 2, and, as shown in Fig. 3, ferrule 31 is a separate part which is attached to foot 3. This connection between ferrule 31 and foot 3 is in the drawings shown to be a screw-joint. Any known form of joint may be employed, and it will be understood that my improved joint here.- in described may be employed to unite the ferrule and the foot 3 in like manner as it is shown and described to unite the ferrule and the bowl 1. The preferred mode of compressing the ferrules upon the fianges or projections is by spinning the metal down to contact, a process well known in the art.

I have found it desirable in many instances to form upon that portion of the surfaces of the article upon which the ferrules are spun lugs or projections 13. Recesses may be formed in the ferrule to engage these lugs, or

to shoulders 14 14 when the ferrules are in.

place and to so dispose the oppositely-placed shoulders that they will be drawn toward one another in the operation of spinning the ferrules in place. Between these oppositelyplaced shoulders I introduce packing 4. This packing is formed of plastic or elastic material and is compressed between the shoulders, as described. It may serve both to cushion the parts one upon another, as when placed between the bowl and foot of a lamp, and it may serve to afford an impervious joint, as when placed between the bowl of a lamp and the collar. In such a place it not only relieves the upper parts of the lamp of jarring, but it also prevents the creeping of oil to the outer surface of the bowl.

The chief advantages which are attributable to my invention areafirm joint, a durable joint, a joint which may be cushioned to relieve jars and blows, and a joint which may be rendered impervious to water, oil, or

gas. 7

I claim as my invention- 1; The combination of an article of glass or like material provided with a projection of tapering contour and of smaller diameter at the base than at the free end, and a metallic ferrule having one end secured to said article by compression against the tapering surface of said projection, substantially as described.

2. The combination of an article of glass or like material provided with a projection of ta pering contour and of smaller diameter at the base than at the free end, and provided with a lug, and a metallic ferrule having one end secured to said article by contact with the surfaces of said projection and lug, substantially as described.

3. The combination of an article of glass or like material having formed upon its surface a tapered projection of smaller diameter at the base than at the free end, and having formed upon its surface a lug, and a metallic ferrule adapted to fit over said projection and having a recess adapted to engage said lug, substantially as described.

4. The combination of an article of glass or like material having formed upon its surface a shoulder and a tapered projection of smaller diameter at the base than at the free end, and a metallic ferrule provided with a shoulder abutting against thesaid shoulder upon the article, the ferrule being secured to the article by a compression upon said tapered projection, substantially as described.

5. The combination of an article of glass or like material having formed upon its surface a shoulder and a tapered flange of smaller diameter at the base than at the free end, a me tallic ferrule having a shoulder and compressed upon said tapered fiange, and a body of packing material held between the shoul-.

ders formed upon the article and upon the ferrule, substantially as described.

In testimony whereof I have hereunto set my hand.

STEPHEN HIPKINS.

Witnesses: HERBERT BRADLEY, F. E. GAITI-IER. 

